Reminders for class sign-ups with limited spots

Purpose

1.1. Ensure prospective and existing students are promptly notified about class openings and sign-up deadlines for limited-spot aikido sessions.
1.2. Send automated reminders as class slots near capacity, incentivizing timely registration and reducing manual follow-up.
1.3. Minimize missed registrations and optimize class fill rates via multi-channel communication (SMS, email, push, in-app).
1.4. Segment reminders by membership type, waitlist status, or previous attendance behavior to target recipients effectively.

Trigger Conditions

2.1. Class sign-ups reach a specified threshold (e.g., 70%, 90% of capacity).
2.2. Time-based triggers before registration deadline (e.g., 12 hours/24 hours prior to start).
2.3. Cancellation creates sudden availability in a nearly full class.
2.4. Waitlist member promoted to available slot.

Platform Variants

3.1. Twilio SMS
• Feature/Setting: Messaging API; Send SMS via automated trigger when sign-ups are near limit (API: /Messages).

3.2. SendGrid
• Feature/Setting: Personalization API; Send batch reminder emails with dynamic class info (API: /mail/send).

3.3. Mailchimp
• Feature/Setting: Automated workflows; Configure email journey triggered by list segments (API: POST /automations).

3.4. Telegram
• Feature/Setting: Bot API; Send custom bot messages when slots dwindle (API: sendMessage).

3.5. Slack
• Feature/Setting: Incoming Webhooks; Post channel alerts for staff on critical class fill status (API: /api/chat.postMessage).

3.6. WhatsApp Business
• Feature/Setting: Notification templates; Automated class reminder to registered numbers (API: /messages).

3.7. Google Calendar
• Feature/Setting: Event creation & notification; Trigger personalized emails to attendees of events with low spots (API: /calendars/events/).

3.8. Microsoft Teams
• Feature/Setting: Bot Framework; Notify team or channel using proactive messaging (API: /v3/conversations).

3.9. Firebase Cloud Messaging
• Feature/Setting: Push Notification service; Send reminders to mobile app users as class fills up (API: /fcm/send).

3.10. Discord
• Feature/Setting: Webhook integration; Alert server with real-time class status updates (Webhooks: /api/webhooks/{webhook.id}).

3.11. Zapier
• Feature/Setting: Multi-step automations; Trigger reminders via various channels as capacity limit approaches (Zap: Schedule + Email/SMS).

3.12. ActiveCampaign
• Feature/Setting: Automated campaigns; Segment contacts and send time-sensitive emails (API: /api/3/contacts/actions/automation).

3.13. HubSpot
• Feature/Setting: Workflow automation; Trigger sequences as contacts are updated for class sign-ups (API: /automation/v3/workflows).

3.14. Salesforce
• Feature/Setting: Process Builder; Set triggers for reminder emails or tasks based on class occupancy status (API: /services/data/vXX.X/sobjects/Task).

3.15. Outlook
• Feature/Setting: Calendar event invitations; Auto-send RSVP reminders nearing event capacity (API: /me/events).

3.16. Pushover
• Feature/Setting: Push API; Broadcast urgent class slot notifications to instructors or students (API: /1/messages.json).

3.17. OneSignal
• Feature/Setting: Push Notification API; Segment user notifications by interest or history (API: /notifications).

3.18. Zoom
• Feature/Setting: Meeting Registration API; Trigger reminders for online sessions with set max participants (API: /meetings/{meetingId}/registrants).

3.19. WooCommerce
• Feature/Setting: Automated follow-up emails on product (class) low stock/availability (Hooks: woocommerce_product_set_stock).

3.20. Shopify
• Feature/Setting: App triggers/event notifications for limited product (class slot) inventory (API: /admin/api/events.json).

3.21. Facebook Messenger
• Feature/Setting: Bots for page messaging; Automated push regarding schedule and sign-up burst (API: /me/messages).

3.22. Viber
• Feature/Setting: Public Account Bot; Broadcast last-call alerts for registrations (API: send_message).

3.23. Klaviyo
• Feature/Setting: Flow Editor; Trigger class reminders based on list/segment behavior (API: /event).

3.24. Eventbrite
• Feature/Setting: Attendee notification triggers as ticket/class sales close (API: /v3/events/{id}/attendees/).

3.25. Calendly
• Feature/Setting: Event reminder hooks; Custom reminders as scheduled slots fill (API: /scheduled_events).

Benefits

4.1. Maximizes class attendance and fill rates efficiently.
4.2. Reduces staff time spent on manual outreach.
4.3. Improves student satisfaction through timely, targeted updates.
4.4. Adapts notifications to user preferences and channel usage.
4.5. Enables proactive scaling as club or class sizes expand.